arch/arm/mach-ixp4xx/coyote-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/coyote-setup.c
   3  *
   4  * Board setup for ADI Engineering and IXDGP425 boards
   5  *
   6  * Copyright (C) 2003-2005 MontaVista Software, Inc.
   7  *
   8  * Author: Deepak Saxena <dsaxena@plexity.net>
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/device.h>
  14 #include <linux/serial.h>
  15 #include <linux/tty.h>
  16 #include <linux/serial_8250.h>
  17
  18 #include <asm/types.h>
  19 #include <asm/setup.h>
  20 #include <asm/memory.h>
  21 #include <asm/hardware.h>
  22 #include <asm/irq.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/flash.h>
  26
  27 void __init coyote_map_io(void)
  28 {
  29         ixp4xx_map_io();
  30 }
  31
  32 static struct flash_platform_data coyote_flash_data = {
  33         .map_name       = "cfi_probe",
  34         .width          = 2,
  35 };
  36
  37 static struct resource coyote_flash_resource = {
  38         .start          = COYOTE_FLASH_BASE,
  39         .end            = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE,
  40         .flags          = IORESOURCE_MEM,
  41 };
  42
  43 static struct platform_device coyote_flash = {
  44         .name           = "IXP4XX-Flash",
  45         .id             = 0,
  46         .dev            = {
  47                 .platform_data = &coyote_flash_data,
  48         },
  49         .num_resources  = 1,
  50         .resource       = &coyote_flash_resource,
  51 };
  52
  53 static struct resource coyote_uart_resource = {
  54         .start  = IXP4XX_UART2_BASE_PHYS,
  55         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  56         .flags  = IORESOURCE_MEM,
  57 };
  58
  59 static struct plat_serial8250_port coyote_uart_data = {
  60         .mapbase        = IXP4XX_UART2_BASE_PHYS,
  61         .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  62         .irq            = IRQ_IXP4XX_UART2,
  63         .flags          = UPF_BOOT_AUTOCONF,
  64         .iotype         = UPIO_MEM,
  65         .regshift       = 2,
  66         .uartclk        = IXP4XX_UART_XTAL,
  67 };
  68
  69 static struct platform_device coyote_uart = {
  70         .name           = "serial8250",
  71         .id             = 0,
  72         .dev                    = {
  73                 .platform_data  = &coyote_uart_data,
  74         },
  75         .num_resources  = 1,
  76         .resource       = &coyote_uart_resource,
  77 };
  78
  79 static struct platform_device *coyote_devices[] __initdata = {
  80         &coyote_flash,
  81         &coyote_uart
  82 };
  83
  84 static void __init coyote_init(void)
  85 {
  86         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  87         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  88
  89         if (machine_is_ixdpg425()) {
  90                 coyote_uart_data.membase =
  91                         (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
  92                 coyote_uart_data.mapbase = IXP4XX_UART1_BASE_PHYS;
  93                 coyote_uart_data.irq = IRQ_IXP4XX_UART1;
  94         }
  95
  96
  97         ixp4xx_sys_init();
  98         platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
  99 }
 100
 101 #ifdef CONFIG_ARCH_ADI_COYOTE
 102 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 103         MAINTAINER("MontaVista Software, Inc.")
 104         BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
 105                 IXP4XX_PERIPHERAL_BASE_VIRT)
 106         MAPIO(coyote_map_io)
 107         INITIRQ(ixp4xx_init_irq)
 108         .timer          = &ixp4xx_timer,
 109         BOOT_PARAMS(0x0100)
 110         INIT_MACHINE(coyote_init)
 111 MACHINE_END
 112 #endif
 113
 114 /*
 115  * IXDPG425 is identical to Coyote except for which serial port
 116  * is connected.
 117  */
 118 #ifdef CONFIG_MACH_IXDPG425
 119 MACHINE_START(IXDPG425, "Intel IXDPG425")
 120         MAINTAINER("MontaVista Software, Inc.")
 121         BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
 122                 IXP4XX_PERIPHERAL_BASE_VIRT)
 123         MAPIO(coyote_map_io)
 124         INITIRQ(ixp4xx_init_irq)
 125         .timer          = &ixp4xx_timer,
 126         BOOT_PARAMS(0x0100)
 127         INIT_MACHINE(coyote_init)
 128 MACHINE_END
 129 #endif
 130